Furthermore, some methods focus on instance feature space transformation other than teaching the feature distribution of teacher to student. To address this issue, Yim  [1]} proposed the Flow of Solution Procedure (FSP) which transfers the learning procedure of the teacher to the student instead of mimicking the feature of intermediate layers. Liu  [2]} combined feature space transformation and instance relationship which uses input images from a training batch to calculate an instance graph and makes the student learn this graph from the teacher.
